Diff: main.cpp

Revision:

0:ccb5eb39a47d

diff -r 000000000000 -r ccb5eb39a47d main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Oct 09 16:51:23 2016 +0000
@@ -0,0 +1,106 @@
+#include "mbed.h"
+#include "wsDrive.h"
+
+// time period between each movement
+#define updatePeriodMS 200
+
+// number of LEDs in chain
+#define chainLen 3
+
+// set the pulldown and then create the driver
+//DigitalIn dummy(P0_15, PullDown);
+//wsDrive ledDriver(P0_15, P0_7, P0_14);     // LPC812
+//wsDrive ledDriver(P1_22, P0_22, P1_15);     // LPC1347
+wsDrive ledDriver(P0_28, P0_12, P0_16);     // LPC1549
+//wsDrive ledDriver(PB_5, PB_4, PB_3);      // STM32F03 - fails, wrong SPI clock
+
+// mbuino stnadard definitions
+//DigitalIn progMode(P0_3,PullDown); // fix the power wasted if we ever sleep.
+//BusOut LEDs(LED1, LED2, LED3, LED4, LED5, LED6, LED7); // control the LEDs
+
+//Timer updateRateTimer;
+
+// pixel storage buffer
+pixelInfo16 pixelData[chainLen];
+
+
+void blankBuffer(pixelInfo *Ptr)
+{
+    memset( (void *)Ptr, 0, chainLen*sizeof(pixelInfo) );
+}
+
+void setPixel(unsigned int index, pixelInfo *colourToUse)
+{
+    if (index < chainLen) {
+        pixelData[index].R = colourToUse->R;
+        pixelData[index].G = colourToUse->G;
+        pixelData[index].B = colourToUse->B;
+    }
+}
+
+void setPixel(unsigned int index, int r, int g, int b)
+{
+    if (index < chainLen) {
+        pixelData[index].R = r;
+        pixelData[index].G = g;
+        pixelData[index].B = b;
+    }
+}
+
+void clearPixel(unsigned int index)
+{
+    if (index < chainLen) {
+        pixelData[index].R = 0;
+        pixelData[index].G = 0;
+        pixelData[index].B = 0;
+    }
+}
+
+int main ()
+{
+    int intensityR = 0;
+    int intensityG = 85;
+    int intensityB = 170;
+    int dirR = 1;
+    int dirG = 1;
+    int dirB = 1;
+
+    // Tell the driver where the data is stored
+    ledDriver.setData(pixelData, chainLen);
+   
+    //updateRateTimer.start();
+    while (true) {
+
+        if (((dirR > 0) && (intensityR >= 255)) ||
+                ((dirR < 0) && (intensityR <= 0)))
+            dirR *= -1;
+        else
+            intensityR += dirR;
+
+        if (((dirG > 0) && (intensityG >= 255)) ||
+                ((dirG < 0) && (intensityG <= 0)))
+            dirG *= -1;
+        else
+            intensityG += dirG;
+
+        if (((dirB > 0) && (intensityB >= 255)) ||
+                ((dirB < 0) && (intensityB <= 0)))
+            dirB *= -1;
+        else
+            intensityB += dirB;
+
+
+        // modify the buffer ready for the next update
+        setPixel(0, intensityR, intensityG, 0);
+        setPixel(1, intensityR, 0, intensityB);
+        setPixel(2, 0, intensityG, intensityB);
+
+        ledDriver.sendData(); // send the LED data
+
+        // wait until the correct time since the last update...
+        //while (updateRateTimer.read_ms() < updatePeriodMS) {
+        //
+        wait_ms(200);
+        //updateRateTimer.reset();
+    }
+}